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HEWLETT-PACKARD
JOURNAL
TECHNICAL INFORMATION FROM THE -hp- LABORATORIES Vol. 7 No. 7
PUBLISHED BY THE HEWLETT-PACKARD COMPANY, 275 PAGE MILL ROAD, PALO ALTO, CALIFORNIA MARCH, 1956
A New DC-300 KG High -Sensitivity
Oscilloscope with Triggered Sweep
Anew dc-300 kc general-purpose oscillo direct-reading frequency-compensated atten
scope has been designed with a number uators. In addition, the instrument incorpo
of valuable features usually found only in rates an accurate calibrator for both the ver
the more expensive, high-frequency type os tical and horizontal systems. These features
cilloscopes. These features have been speci are such as to enable the instrument to meas
fically selected to make the oscilloscope a true ure voltages accurately within 5% over the
measuring instrument capable of accurate amplitude range from 1 millivolt peak-to-
measurements not only of voltage but of time peak to 500 volts peak-to-peak and over the
and phase shift as well. frequency range from d-c to 300 kc.
Since one of the important uses for an oscil Accurate measurements of time (i.e., dura
loscope is as a highly flexible voltmeter, con tions, periods, or intervals) are made possible
siderable care has been taken for an oscillo by designing the instrument so that it uses a
scope of this class to make it suitable for triggered type sweep with a linear sweep
measuring voltage. Its amplifiers have been generator. A triggered sweep is distinguished
designed to have a high order of stability in from the more common synchronized sweep
both a-c and d-c operation over the range in that it offers a method of obtaining high
from d-c to 300 kc and are provided with linearity in the sweep, in that the speed of the
RATEO
HI -FREQUENCY-
LIMIT
..
\\ 101, 1001 lO